I ran the Marathon Sports Super Sunday 5K on 2/7/10. It was not a good race for me, as I ran 23:59. This was my slowest 5K ever, discounting the Komen's 5K in Sept, where I did not really put out a full effort. My knee felt OK, so I think the conclusion to be drawn is that I'm just not in very good shape.
I did a 3 miler yesterday and felt like I was shuffling along very slowly.
So, my goal for March is to average 3 runs a week, which will - embarrassingly - be an upgrade in mileage.